Scale base



H. O. HEM

May 4 1926.

SCALE BASE Original Filed y 10, 1916 Allan .n "an Patented May 4, 1926.

UhllTED STATES PATENT @FFHCF...

I-IALVOR O. HEM, OF TOLEDO, OHIO, ASSIGNOR TO TOLEDO SCALE COMPANY, OFTOLEDO, OHIO, A CORPORATION" OF NEVT JERSEY.

SCALE BASE.

Original application filed May 10, 1916, Serial No. 96,511. Divided andthis application filed July 11, 1921. Serial No. 483,647.

To all whom it may concern:

Be it known that I, HALvoR O. HEM, a citizen of the United States,residing at T0- ledo, in the county of Lucas and State of Ohio, haveinvented certain new and useful Improvements in Scale Bases, of whichthe following is a specification.

This'application is a division of U. S. application Ser. No. 96,511,filed May 10, 1916.

This invention relates to weighing scales, and one of its principalobjects is to provide a light, compact and inexpensive self-containedbase for dormant scales particularly adapted for use in scales ofcomparatively great capacity.

Another object of the invention is the provision of means for supportingthe base upon surfaces which are not exactly level or plane.

Another object of the invention is the provision of efficient means forsupporting the fulcrum bearings of the platform levers.

Another object of the invention is the provision of a scale base havingmeans for supporting the fulcrum pivots of the platform levers, thestructure being so arranged that the sides and front of the platform maybe substantially flush with the sides and front of the base, whileexcessive overhang of the platform is avoided.

Other objects and advantages will be apparent from the followingdescription, in which reference is had to the accompanying drawingsillustrating preferred embodiments of my invention and wherein similarreference numerals designate similar parts throughout the several views.

In the drawings Figure 1 is a plan view of a scale base embodying myinvention, parts being broken away and parts being in section to moreclearly disclose the structure;

Figure 2 is a longitudinal sectional view of a slightly modified form ofscale base embodying my invention;

Figure 3 is an end view of the scale base shown in Figure 1, parts beingbroken away and parts in section for clearness of illustration; and

Figure 4 is a perspective view of a nut adapted to co-operate with thefeet upon which the base is supported.

The form of base shown in Figure 2 differs from that shown in Figures 1and 3 only inthat the lower side of the base shown in Figure 2 is closedby means of a plate or floor of sheet metal. Since this is a mereaddition to the form shown in Figures 1 and 3, the same referencenumerals have been used to designate like parts in all the figures, andFigure 2 will be referred to in describing the form shown in Figures 1and 3.

Referring to the drawings in detail, the scale base of my inventioncomprises side members 1 of channel formation, the open sides of thechannels being turned outwardly, and end members 2 and 2, likewise ofchannel formation. the open sides of the channel member 2 in the forwardend memher being turned inwardly. The end members 2 and 2 are positionedbetween the side members 1, as shown in Figure 1, and are secured to theside members by means of angle plates 3 which are positioned at thecorners of the frame and secured by means of rivets to the vertical websof the side and end members (see Figures 1 and 2).

Located between the end members 2 and 2 and extending parallel theretois a similar channel member 1 which is likewise secured between the sidemembers 1 by means of angle plates 5. Secured to the lower flanges ofthe side and end members 2 and 2 (which lie in the same plane) at thecorners of the frame are four gusset plates 6 which not only serve tostrengthen the frame of the base but also serve as parts to which thesupporting feet for the base may be at tached. Each of the gusset plates6 is provided with a rectangular opening 7 which receives the reducedrectangular portion 8 of a threaded nut 9. A threaded post 10 extendsthrough the opening in the nut 9 and is swiveled into a foot 11 which isadapted to rest upon the surface supporting the scale. The post 10 isprovided with a hexagonal head 12 at its upper end by means of which itmay be turned to adjust the height of the corner of the scale that itsupports, and a lock nut 13 serves to prevent accidental rotation of thepost in the nut.

The fulcrum bearings 14: of the platform levers are supported inbrackets 15 and 16 which rest upon the lower flanges of the end member 2and the cross member 4. The fulcrum brackets are, therefore, directlysupported by the gussets 6. They are further secured, as shown inFigures 1 and 2, to the vertical webs of the end member and cross memberby means of bolts 17. As is indicated in Figure 3, I prefer to secureeach of the brackets to the adjacent web by means of a single bolt 17and to make the lower ends of the brackets which rest upon thehorizontal flanges of arcuate shape so that the brackets may swingsligl'itly and thus allow the bearings supported thereby to come intoproper alignment with the knife edges of the fulcrum pivots of thelevers.

Owing to the fact that the channels of the end members open inwardly,the fulcrum bearings may be so placed that there is very little overhangof the platform, even though it extends above the upper flange of theend channel member 2 to a position flush with the outside of thevertical web. Since it is permissible for the ends of the fulcrum pivotsand load pivots to come quite close to the sides of the frame, it isunnecessary that these channels open inwardly in order to avoidexcessive overhang, and, as the end member 2 opens inwardly and the sidemembers open outwardly, the frame may be rigidly constructed wirhoutmitering the corners and the connection between the cross member t andthe side members may be made equally strong and rigid.

When the platform levers are in place, as shown in the several figuresof the drawing, and the platform is in its proper position upon them,the rear edge of the platform extends to a position directly over therear side of the web of the member 41-, and extending from side to sideof the frame in juxtaposition to the rear edge of the platform is achannel beam 18. A similar channel beam 19 extends from side to side ofthe frame along the upper flange of the end member 2. The channel beams18 and 19 serve to support a metallic deck 20 which is substan tiallylevel with the platform and is adapted to carry the column, cabinet, orother supporting structure for the beam or automatic weighing mechanism.The channel beam 18 may, if desired, be additionally supported by meansof one or more intermediate brackcts (not shown) secured to the crossmembar 4.

In Figure 2 the lower side of the base is shown as enclosed by means ofa sheet metal plate or floor 21. The base may be so equipped when it isnot to be located upon a closed surface.

While it will be apparent that the illustrated embodiments of myinvention herein disclosed are well calculated to adequately fulfill theobjects primarily stated, it is to be understood that the invention issusceptible to variation, modification and change within the spirit andscope of the subjoined claims.

Having described my invention, I claim:

1. In a device of the class described, in combination, parallel channelside members arranged with the open sides of the channels turnedoutwardly, cross channel members connecting said side channel membersand arranged with the open sides of their channels turned toward eachother, and fulcrum brackets secured to the vertical webs of said crosschannel members, the lower ends of said fulcrum brackets being supportedby the horizontal flanges of said channel cross members.

2. In a device of the class described, in combination, parallel channelside members arranged with the open sides of their channels turnedoutwardly, cross channel members connecting said side channel membersand arranged with the open sides of their channels turned toward eachother, and fulcrum brackets pivotally secured to the vertical webs ofsaid cross channel members.

3. In a device of the class described, in combination, parallel channelside members arranged with the open sides of their channels turnedoutwardly, cross channel members connecting said side channel membersand arranged with the open sides of their channcls turned toward eachother, and fulcrum brackets pivotally secured to the vertical webs ofsaid cross channel members, the lower ends of said fulcrum bracketsbeing of arcuate shape and substantially engaging the lower horizontalflanges of said cross members.

5. In a device of the class described, in combination, side channelmembers, end channel members extending therebetween, the channels ofsaid members opening laterally, gusset plates secured to the lowerhorizontal flanges of said side and end channel members, and supportingfeet mounted on said gusset plates.

5. In a device of the class described, in combination, side channelmembers, end channel members extending therebetween, the channels ofsaid members opening laterally, gusset plates secured to the lower horizontal flanges of said side and end channel members, supporting feetmounted on said gusset plates, and means for independently adjusting theheights of said supporting feet.

6. In a device of the class described, in combination, parallel channelside members arranged with the open sides of the channels turnedoutwardly, cross channel members connecting said side channel membersand arranged with the open sides of their chansaid side and endmem'bers, gusset plates secured to the lower horizontal flanges of saidside and end channel members, and supporting feet mounted on said gussetplates.

8. In a device of the class described, in combination, side channelmembers, end channel members extending therebetween, a cross channelmember extending between said side channel members and located betweensaid end channels, channel beams extending between said side channelmembers and located respectively adjacent said cross member and one ofsaid end members, and a deck supported upon said channel beam.

9. In a device of the class described, in combination, a rectangularframe comprising a plurality of channel members having their channelsopening laterally, gusset plates secured to the lower horizontal flangesof said channel members, and fulcrum brackets restings upon the lowerhorizontal flanges of said channel members and supported by said gussetplates.

10. In a device of the class described, in combination, a rectangularframe comprising a plurality of channel members having their channelsopening laterally, gusset plates secured to the lower horizontal flangesof said channel members, and fulcrum brackets supported by said gussetplates.

11. In a device of the class described, in combination, parallel sidemembers having vertical webs and horizontal flanges along the upperedges of said webs, cross members connecting said side members, saidcross members also having vertical webs and hori zontal flanges alongthe upper edges of said webs, gusset plates secured to and lying belowsaid side and cross members, and fulcrum brackets supported by saidgusset plates.

12. In a device of the class described, in combination, parallel sidemembers having vertical webs and horizontal flanges along the upperedges of said webs, cross members connecting said side members, saidcross members also having vertical webs and horizontal flanges along theupper edges of said webs, gusset plates secured to and lying below saidside and cross members, and fulcrum brackets supported by said gussetplates and secured to said vertical webs.

HALVOR O. HEM.

